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<?php namespace Maatwebsite\Excel\Writers;
use Closure;
use Carbon\Carbon;
use PHPExcel_IOFactory;
use Illuminate\Filesystem\Filesystem;
use Illuminate\Support\Facades\Response;
use Maatwebsite\Excel\Classes\FormatIdentifier;
use Maatwebsite\Excel\Classes\LaravelExcelWorksheet;
use Maatwebsite\Excel\Exceptions\LaravelExcelException;
use Symfony\Component\Finder\Exception\AccessDeniedException;
/**
*
* LaravelExcel Excel writer
*
* @category Laravel Excel
* @version 1.0.0
* @package maatwebsite/excel
* @copyright Copyright (c) 2013 - 2014 Maatwebsite (http://www.maatwebsite.nl)
* @author Maatwebsite <info@maatwebsite.nl>
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
*/
class LaravelExcelWriter {
/**
* Spreadsheet filename
* @var string
*/
public $filename;
/**
* Spreadsheet title
* @var string
*/
public $title;
/**
* Excel object
* @var \PHPExcel
*/
public $excel;
/**
* Laravel response
* @var Response
*/
protected $response;
/**
* Spreadsheet writer
* @var object
*/
public $writer;
/**
* Excel sheet
* @var LaravelExcelWorksheet
*/
protected $sheet;
/**
* Parser
* @var ViewParser
*/
public $parser;
/**
* Default extension
* @var string
*/
public $ext = 'xls';
/**
* Valid file extensions.
* @var array
*/
private $validExtensions = [
'xlsx', 'xlsm', 'xltx', 'xltm', //Excel 2007
'xls', 'xlt', //Excel5
'ods', 'ots', //OOCalc
'slk', //SYLK
'xml', //Excel2003XML
'gnumeric', //gnumeric
'htm', 'html', //HTML
'csv','txt' //CSV
,'pdf' //PDF
];
/**
* Path the file will be stored to
* @var string
*/
public $storagePath = 'exports';
/**
* Header Content-type
* @var string
*/
protected $contentType;
/**
* Spreadsheet is rendered
* @var boolean
*/
protected $rendered = false;
/**
* Construct writer
* @param Response $response
* @param FileSystem $filesystem
* @param FormatIdentifier $identifier
*/
public function __construct(Response $response, FileSystem $filesystem, FormatIdentifier $identifier)
{
$this->response = $response;
$this->filesystem = $filesystem;
$this->identifier = $identifier;
}
/**
* Inject the excel object
* @param PHPExcel $excel
* @param bool $reset
* @return void
*/
public function injectExcel($excel, $reset = true)
{
$this->excel = $excel;
if ($reset)
$this->_reset();
}
/**
* Set the spreadsheet title
* @param string $title
* @return LaravelExcelWriter
*/
public function setTitle($title)
{
$this->title = $title;
$this->getProperties()->setTitle($title);
return $this;
}
/**
* Set the filename
* @param $name
* @return $this
*/
public function setFileName($name)
{
$this->filename = $name;
return $this;
}
/**
* Get the title
* @return string
*/
public function getTitle()
{
return $this->title;
}
/**
* Get the filename
* @return string
*/
public function getFileName()
{
return $this->filename;
}
/**
* Share view with all sheets
* @param string $view
* @param array $data
* @param array $mergeData
* @return LaravelExcelWriter
*/
public function shareView($view, $data = [], $mergeData = [])
{
// Get the parser
$this->getParser();
// Set the view inside the parser
$this->parser->setView($view);
$this->parser->setData($data);
$this->parser->setMergeData($mergeData);
return $this;
}
/**
* Set the view
* @return LaravelExcelWriter
*/
public function setView()
{
return call_user_func_array([$this, 'shareView'], func_get_args());
}
/**
* Load the view
* @return LaravelExcelWriter
*/
public function loadView()
{
return call_user_func_array([$this, 'shareView'], func_get_args());
}
/**
* Create a new sheet
* @param string $title
* @param callback|null $callback
* @return LaravelExcelWriter
*/
public function sheet($title, $callback = null)
{
// Clone the active sheet
$this->sheet = $this->excel->createSheet(null, $title);
// If a parser was set, inject it
if ($this->parser)
$this->sheet->setParser($this->parser);
// Set the sheet title
$this->sheet->setTitle($title);
// Set the default page setup
$this->sheet->setDefaultPageSetup();
// Do the callback
if (is_callable($callback))
call_user_func($callback, $this->sheet);
// Autosize columns when no user didn't change anything about column sizing
if (!$this->sheet->hasFixedSizeColumns())
$this->sheet->setAutosize(config('excel.export.autosize', false));
// Parse the sheet
$this->sheet->parsed();
return $this;
}
/**
* Set data for the current sheet
* @param array $array
* @return LaravelExcelWriter
*/
public function with(Array $array)
{
// Add the vars
$this->fromArray($array);
return $this;
}
/**
* Export the spreadsheet
* @param string $ext
* @param array $headers
* @throws LaravelExcelException
*/
public function export($ext = 'xls', Array $headers = [])
{
// Set the extension
$this->ext = mb_strtolower($ext);
// Render the file
$this->_render();
// Download the file
$this->_download($headers);
}
/**
* Check if input file extension is valid.
* @param $ext
*/
private function checkExtensionIsValid($ext)
{
// Check file extension is valid
if (!in_array($ext, $this->validExtensions))
{
throw new \InvalidArgumentException("Invalid file extension `$ext`, expected "
.implode(", ", $this->validExtensions).".");
}
}
/**
* Convert and existing file to newly requested extension
* @param $ext
* @param array $headers
*/
public function convert($ext, Array $headers = [])
{
$this->export($ext, $headers);
}
/**
* Export and download the spreadsheet
* @param string $ext
* @param array $headers
*/
public function download($ext = 'xls', Array $headers = [])
{
$this->export($ext, $headers);
}
/**
* Return the spreadsheet file as a string
* @param string $ext
* @return string
* @throws LaravelExcelException
*/
public function string($ext = 'xls')
{
// Set the extension
$this->ext = $ext;
// Render the file
$this->_render();
// Check if writer isset
if (!$this->writer)
throw new LaravelExcelException('[ERROR] No writer was set.');
//Capture the content as a string and return it
ob_start();
$this->writer->save('php://output');
return ob_get_clean();
}
/**
* Download a file
* @param array $headers
* @throws LaravelExcelException
*/
protected function _download(Array $headers = [])
{
$filename = $this->filename;
$userAgent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '';
// Just for Microsoft Explore
if (preg_match('/Trident|Edge/i', $userAgent)) {
$filename = rawurlencode($filename);
}
// Set the headers
$this->_setHeaders(
$headers,
[
'Content-Type' => $this->contentType,
'Content-Disposition' => 'attachment; filename="' . $filename . '.' . $this->ext . '"',
'Expires' => 'Mon, 26 Jul 1997 05:00:00 GMT', // Date in the past
'Last-Modified' => Carbon::now()->format('D, d M Y H:i:s'),
'Cache-Control' => 'cache, must-revalidate',
'Pragma' => 'public'
]
);
// Check if writer isset
if (!$this->writer)
throw new LaravelExcelException('[ERROR] No writer was set.');
// Download
$this->writer->save('php://output');
// End the script to prevent corrupted xlsx files
exit;
}
/**
* Store the excel file to the server
* @param string $ext
* @param boolean $path
* @param boolean $returnInfo
* @return LaravelExcelWriter|array
*/
public function store($ext = 'xls', $path = false, $returnInfo = false)
{
// Set the storage path
$this->_setStoragePath($path);
// Set the extension
$this->ext = mb_strtolower($ext);
// Render the XLS
$this->_render();
// Set the storage path and file
$toStore = $this->storagePath . DIRECTORY_SEPARATOR . $this->filename . '.' . $this->ext;
// Save the file to specified location
$this->writer->save($toStore);
// Return file info
if ($this->returnInfo($returnInfo))
{
// Send back information about the stored file
return [
'full' => $toStore,
'path' => $this->storagePath,
'file' => $this->filename . '.' . $this->ext,
'title' => $this->filename,
'ext' => $this->ext
];
}
// Return itself
return $this;
}
/**
* Check if we want to return info or itself
* @param boolean $returnInfo
* @return boolean
*/
public function returnInfo($returnInfo = false)
{
return $returnInfo ? $returnInfo : config('excel.export.store.returnInfo', false);
}
/**
* Store the excel file to the server
* @param str|string $ext The file extension
* @param bool|str $path The save path
* @param bool $returnInfo
* @return LaravelExcelWriter
*/
public function save($ext = 'xls', $path = false, $returnInfo = false)
{
return $this->store($ext, $path, $returnInfo);
}
/**
* Start render of a new spreadsheet
* @throws LaravelExcelException
* @return void
*/
protected function _render()
{
// Preserve any existing active sheet index
$activeIndex = $this->getExcel()->getActiveSheetIndex();
// getAllSheets() returns $this if no sheets were added to the excel file
if ($this->getAllSheets() instanceof $this) {
throw new LaravelExcelException('[ERROR] Aborting spreadsheet render: a minimum of 1 sheet is required.');
}
//Fix borders for merged cells
foreach($this->getAllSheets() as $sheet){
foreach($sheet->getMergeCells() as $cells){
$style = $sheet->getStyle(explode(':', $cells)[0]);
$sheet->duplicateStyle($style, $cells);
}
}
// Restore active sheet index.
$this->setActiveSheetIndex($activeIndex);
// There should be enough sheets to continue rendering
if ($this->excel->getSheetCount() < 0)
throw new LaravelExcelException('[ERROR] Aborting spreadsheet render: no sheets were created.');
// Set the format
$this->_setFormat();
// Set the writer
$this->_setWriter();
// File has been rendered
$this->rendered = true;
}
/**
* Get the excel object
* @return PHPExcel
*/
public function getExcel()
{
return $this->excel;
}
/**
* Get the view parser
* @return ViewParser
*/
public function getParser()
{
// Init the parser
if (!$this->parser)
$this->parser = app('excel.parsers.view');
return $this->parser;
}
/**
* Get the sheet
* @return LaravelExcelWorksheet
*/
public function getSheet()
{
return $this->sheet;
}
/**
* Set the active sheet index
* @param integer $index
* @return LaravelExcelWriter
*/
public function setActiveSheetIndex($index)
{
$this->sheet = $this->excel->setActiveSheetIndex($index);
return $this;
}
/**
* Set attributes
* @param string $setter
* @param array $params
*/
protected function _setAttribute($setter, $params)
{
// Get the key
$key = lcfirst(str_replace('set', '', $setter));
// If is an allowed property
if ($this->excel->isChangeableProperty($setter))
{
// Set the properties
call_user_func_array([$this->excel->getProperties(), $setter], $params);
}
}
/**
* Set the write format
* @return void
*/
protected function _setFormat()
{
// Get extension
$this->ext = strtolower($this->ext);
// get the file format
$this->format = $this->identifier->getFormatByExtension($this->ext);
// Get content type
$this->contentType = $this->identifier->getContentTypeByFormat($this->format);
}
/**
* Set the writer
* @return PHPExcel_***_Writer
*/
protected function _setWriter()
{
// Check if input file extension is valid
$this->checkExtensionIsValid($this->ext);
// Set pdf renderer
if ($this->format == 'PDF')
{
$this->setPdfRenderer();
}
// Create the writer
$this->writer = PHPExcel_IOFactory::createWriter($this->excel, $this->format);
// Set CSV delimiter
if ($this->format == 'CSV')
{
$this->writer->setDelimiter(config('excel.csv.delimiter', ','));
$this->writer->setEnclosure(config('excel.csv.enclosure', '"'));
$this->writer->setLineEnding(config('excel.csv.line_ending', "\r\n"));
$this->writer->setUseBOM(config('excel.csv.use_bom', false));
}
// Set CSV delimiter
if ($this->format == 'PDF')
{
$this->writer->writeAllSheets();
}
// Calculation settings
$this->writer->setPreCalculateFormulas(config('excel.export.calculate', false));
// Include Charts
$this->writer->setIncludeCharts(config('excel.export.includeCharts', false));
return $this->writer;
}
/**
* Set the pdf renderer
* @throws \Exception
*/
protected function setPdfRenderer()
{
// Get the driver name
$driver = config('excel.export.pdf.driver');
$path = config('excel.export.pdf.drivers.' . $driver . '.path');
// Disable autoloading for dompdf
if(! defined("DOMPDF_ENABLE_AUTOLOAD")){
define("DOMPDF_ENABLE_AUTOLOAD", false);
}
// Set the pdf renderer
if (!\PHPExcel_Settings::setPdfRenderer($driver, $path))
throw new \Exception("{$driver} could not be found. Make sure you've included it in your composer.json");
}
/**
* Set the headers
* @param $headers
* @throws LaravelExcelException
*/
protected function _setHeaders(Array $headers = [], Array $default)
{
if (headers_sent()) throw new LaravelExcelException('[ERROR]: Headers already sent');
// Merge the default headers with the overruled headers
$headers = array_merge($default, $headers);
foreach ($headers as $header => $value)
{
header($header . ': ' . $value);
}
}
/**
* Set the storage path
* @param bool $path
* @return void
*/
protected function _setStoragePath($path = false)
{
// Get the default path
$path = $path ? $path : config('excel.export.store.path', storage_path($this->storagePath));
// Trim of slashes, to makes sure we won't add them double
$this->storagePath = rtrim($path, DIRECTORY_SEPARATOR);
// Make sure the storage path exists
if (!$this->filesystem->exists($this->storagePath)) {
$this->filesystem->makeDirectory($this->storagePath, 0777, true);
}
if (!$this->filesystem->isWritable($this->storagePath)) {
throw new LaravelExcelException("Permission denied to the storage path");
}
}
/**
* Reset the writer
* @return void
*/
protected function _reset()
{
$this->excel->disconnectWorksheets();
}
/**
* Dynamically call methods
* @param string $method
* @param array $params
* @throws LaravelExcelException
* @return LaravelExcelWriter
*/
public function __call($method, $params)
{
// If the dynamic call starts with "set"
if (starts_with($method, 'set') && $this->excel->isChangeableProperty($method))
{
$this->_setAttribute($method, $params);
return $this;
}
// Call a php excel method
elseif (method_exists($this->excel, $method))
{
// Call the method from the excel object with the given params
$return = call_user_func_array([$this->excel, $method], $params);
return $return ? $return : $this;
}
throw new LaravelExcelException('[ERROR] Writer method [' . $method . '] does not exist.');
}
/**
* Valid file extensions.
* @return array
*/
public function getValidExtensions()
{
return $this->validExtensions;
}
}